Staple fiber cutter



April 14, 1942. T. R. Q'MAL EY v Y 2, 79,718

' STAPLE FIBER CUTTER Fileq Sept. 24, 1941 of apparatus which involves support 9. 1 it on the shaft by means opening Not 7 I is mounted for rotation. A suitable v bushing it of bearing metal may be inserted be-' The shaft has a cutting means so Eatented Apr. '14, 1942 PTENT g nane STAPLE FIBER CUTTER Thomas it. OMalley, Wilmington,

Viscose Corporation,

to American Deb, assignor Wilmington,

DeL, aoorporation of Delaware 5 Claims.

This invention relates to the cutting of staple fibers from bundles of continuous filaments and more particularly to improvements in that type the use of cen-j trifugal force in drawing the bundle of filaments to be cut into the path of a knife, such as is described in the Beria Patent 1,723,998.

It is an object of stationary cutting knife of the patent with a rapidly moving knife which swipes across the filament bundle at a highrate of speed compared to the velocity of motion of the filament in the other direction.

It a further object of the invention to provide a simple and effective arrangement of apparatus for adapting staple fiber cutters of this type to the operation of such a moving knife.

Further objects of the invention will be apparent from the drawing and description thereof that follows hereinafter. In the drawing, illustrative of the invention,

Figure l is a plan view of the apparatus,

' Figure 2 is an elevational view partially in cross-section. 7 '-As shown in the drawing, the apparatus comprises a centrifugal disk 2 having the axial entrance channel 3 connected with the radial channel 4. The disk is mounted for shaft 5 within the bearings 6 and 1 on a suitable Motive power is supplied to the pulley of a motor and belt not shown. A stationary gear II is suitably fastenedto the bearing support, such as by means of the hub i2 extending annularlytherearound. I

The disk itself is formed withthe radially outwardly extending flange 13 in the radial channel withinthe disk shaft l5 and the flange opening 51.

disk l8 fastened to one end theretween the of and a gear 89 out ,the gear if so that as the centrifugal disk 2 redisk l8 rotates with gear ii. 'lihe small disk It carries a arrangedas close proximity or substantial contact with the centrifugal disk adjacent the opening ll of the radial channel-so that each-rotation of the knife through this position results in cutting of the staple fibers. The disk It may be balanced by any suitable counterweight 2 I and.

rotation with the he other end in mesh with the shaft knife 29 or other to be brought in the invention to replace the n multaneously moving said concentric wit 4 In apparatus of the class described, a rotrance of a filamentary 1941, Serial No. 412,121

has been disclosed, to be illustrative only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the invention as-defined by the appended claims.

What I claim is:

1. In apparatus of the class described, centrifugal means for continuously feeding a filamentary bundle outwardly therefrom and means for swinging a cutting blade 1 at intervals transversely of said the direction of rotation of the filamentary bundle asit is fedby said centrifugal means. i

2. In apparatus of mentary bundle outwardly therefrom and means for rotating a cutting blade in the point of emergence of the filamentary bundle therefrom.

3. In apparatus of the class described; centrifugal means for continuously feeding a filamentary bundle outwardly therefrom, cutting means for cutting'said filamentary bundle at intervals as it is fed outwardly, means for rotating said cutting means about its axis. and siaxis in a circular path the centrifugal feeding means.

tatable disk having: an axial channel for ennel connected thereto for discharge of the bundle therefrom, a member extending radially ,out-

which, adjacent the trance of a filamentary nal of said cutting While a preferred embodiment of the invention I 1 in said member in wardly from said disk, cutting means journaled substantial alignment with said radial channel tangentially of said disk, said cutting means about its opposite to the 5'. In apparatus of tatable disk having the class described, a roan axial channel for enwardly from saiddisk, cutting means in alignment with said d k, a stationary. gear arranged concentrically with ting disk and a second gear secured to the jourmeans and in mesh stationary gear.

bundle in aidirection opposite to i the class described, cen trifugal means for continuously feeding a filaa path substantially coplanar with and substantially tangent to saidcentrifugal means adjacent rotatable bundle and a radial chan- I for rotation substantially v and means for rotating I axis in a'directiondirection of rotation of said disk.

bundle anda radial channel connected thereto for d charge of the bundle therefrom, a member extending radially outjournaled said radial channel for rotation substantially; tangentially of 1 respect to said cutwith said moms a. own-Er. 

